.\"	OpenBSD: setproctitle.3,v 1.4 1996/10/08 01:20:08 michaels Exp 
.\"     $Id: setproctitle.3,v 1.1 2004-10-14 13:19:53 ianb Exp $
.\"
.\" Copyright (c) 1994, 1995 Christopher G. Demetriou
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"      This product includes software developed by Christopher G. Demetriou
.\"	 for the NetBSD Project.
.\" 3. The name of the author may not be used to endorse or promote products
.\"    derived from this software without specific prior written permission
.\"
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.Dd April 13, 1994
.Dt SETPROCTITLE 3
.Os "Linux NetKit (0.17)"
.Sh NAME
.Nm setproctitle
.Nd set process title
.Sh SYNOPSIS
.Fd #include <stdlib.h>
.Ft void
.Fn setproctitle "const char *fmt" "..."
.Sh DESCRIPTION
The
.Fn setproctitle
function sets the invoking process's title.
The process title is set to the last component of the program
name, followed by a colon and the formatted string specified
by
.Va fmt .
If
.Va fmt
is NULL, the colon and formatted string are omitted.
The length of a process title is limited to 2048 bytes.
.Sh EXAMPLES
Set the process title to the program name, with no further information:
.Bd -literal -offset indent
setproctitle(NULL);
.Ed
.Pp
Set the process title to the program name, an informational string,
and the process id:
.Bd -literal -offset indent
setproctitle("foo! (%d)", getpid());
.Ed
.Sh SEE ALSO
.Xr ps 1 ,
.Xr w 1 ,
.Xr printf 3
.Sh HISTORY
The
.Fn setproctitle
function first appeared in NetBSD 0.9a.
